Soviet General Zhukov’s former home is a quiet spot amid the heavy traffic of Ulaanbaatar.

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.

Dedicated to the Father of the British Fire Service.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

This 23-foot-tall bear stands amid the hustle and bustle of Hamad International Airport.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

The original span of a high bridge across the deep Crooked River Gorge has been preserved for pedestrian use.

Considered an architectural abomination by some, this metal-clad building is known as 'little red riding hood' by locals.

One of the smallest parks in San Francisco honors the legacy of the "Mother of Civil Rights in California."

The remains of a ruined mansion memorialize the 1906 earthquake.

The rusting remains of the largest assembled WWII fleet on the West Coast.

A four paneled, brightly multicolored mosaic adorns the side of this popular grocery store.

An Art Deco Icarus statue adorns this abandoned gem of Yugoslav Modernist architecture.

This ordinary-looking rock may have played an important role in a 16th-century Scottish battle.

A hidden courtyard houses early 20th-century plaster masterpieces.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

For more than 170 years, this family-run bakery has been serving Berlin’s best Baumkuchen, or “tree cake.”

The second-largest giant sequoia in the world.

Dine on Hungarian-Jewish dishes at this multigenerational, family-run institution.

Meant to resemble a massive tree, the building is the best example of Spanish organicist architecture in Madrid.

This feat of Brutalist architecture is also known as the Three Sisters.

Along the Outback Scenic Byway, adjacent to hot springs, this human-made geothermal feature takes unexplained breaks.

This jagged colossus of a building is mostly held together by an enormous concrete exoskeleton.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.