美国最古老的宠物墓地是数千只宠物的最终安息之地 On most days, Mark Lindenberg either drives or walks over to visit with Boots, his beloved cat who died in 2020 at 17 years old.

固特异飞艇已经在美国上空飞行了100年。 The Goodyear Blimp is an airship that is also a traveling advertisement for the Goodyear Tire & Rubber Company.

詹姆斯·麦迪逊，美国宪法之父 Madison was elected president of the United States in 1808.

美国制造的摩天大楼 Skyscrapers were invented in the United States.