Some pools have the ability to instantly transport viewers to another time or another place. These 21 pools create entirely different worlds from new perspectives.

This cave-like pool was created by Caviness Landscape Design for Twin Creek Farms. The swim-through grotto includes amenities like a bar, television, sound system and waterfalls.

This infinity pool from AMS Landscape Design Studios cleverly incorporates a tree in the middle to add a dreamlike quality.

This pool at a Singapore resort overlooks the entire city and gives the illusion that guests might just fall over the edge.

Greg Marshall photographed this infinity pool in Marmaris, Turkey. It blends perfectly with its surroundings and the sky.

Flickr user cloudzilla took a dip in this pool at the Hotel Villa Mahal in Turkey. He said it’s about a 20-foot drop from the edge of the pool.

This indoor pool from Deep River Partners has glass art along the bottom, creating a gorgeous runway effect.

This pool, designed by Paola Lenti, uses a tan walk-in design and a teal bottom to create the illusion of a beach.

The Nemo 33, photographed by Eric Burgers is the deepest indoor swimming pool in the world, extending to a depth of 113 feet. The pool is located in Neerstalle, Brussels and is used primarily for diving lessons. It has several simulated caves for instructional purposes.

The San Alfonso del Mar resort in Chile is home to the largest outdoor pool in the world. It extends three-fifths of a mile and holds 66 million gallons of water. It’s the deepest pool in the world, with a depth of up to 115 feet in some places.

This stunning pool is in the Jade Mountain Resort in St. Lucia. It provides bright and colorful surroundings.

This pool in Thailand’s Anantara Golden Triangle Resort blends perfectly with the lush greenery surrounding it.

This beautiful pool, photographed by Sarah Ackerman, is located at the One & Only resort in Reethi Rah, Maldives.

Photographed by Abe Kleinfeld, the Hotel Riu pool in Cancun is reminiscent of ancient times.

This pool at the Amangiri Resort in Canyon Point, Utah was built around geological formations that are 160 million years old. The result is an oasis in the desert.

This dreamlike pool is in the Mardan Palace Hotel in Antalya, Turkey. The hotel is considered Europe’s most expensive luxury resort.

This curvy masterpiece in the Qasr Al Sarab Desert Resort in Abu Dhabi offers stunning panoramic views.

The water’s clear in this pool in Thailand’s Koh Samui Resort. The red effect is achieved with an underwater mosaic of red, yellow and orange tiles.

Natural lighting lends a warm glow to the Gellert Baths in Budapest, Hungary.

This private home in Costa Reyes, Mexico, called Casa Sol De Occidente, is perched atop a cliff with a moat-like pool surrounding it.

This glass-bottom pool at the Shanghai Holiday Inn gives swimmers a look down.

Neptune’s Pools in California look like they came straight out of ancient Europe.