The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

This ruined relic of the medieval city of Jahanpanah is a quiet oasis in the middle of New Delhi.

A favorite haunt of Delhi's politicos and intellectuals, this old-school coffee shop was shut down under Indira Gandhi's Emergency.

This hilltop warren of monastic dwellings is the result of centuries worth of Mongol attacks.

A grassroots collection showcasing personal objects of family members separated by the post-1971 border between India and Pakistan.

This abandoned palace and the stupas around it conceal beautiful Buddhist frescoes, statues, and silk paintings.

Over 3 miles up in the Himalayas this pass is one of the highest drivable roads in the world.

The abandoned site of the Beatles spiritual awakening and subsequent revolt.

Profile of a sleeping person 4km long in 250m high cliffs.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

This "Palace of Purification" has made many film appearances as a dark and sinister headquarters.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

One of the largest underground systems runs under Canada's largest urban center.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

An abandoned 1970s theme park that has been turned into a space for waterfront walking.

The oldest landmark of Toronto is a testament to shifting sands.

This Hindu temple is an architectural marvel designed and built according to ancient Indian principles.

A school teacher's massive and terrifying self-built castle.

Stunning views over Ontario's old-growth pine forests.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

This 150 foot seven-tiered cascading waterfall is one of the hidden gems of the White Mountains.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.