user
Instruction
Answer the question based on the provided table.


Table
Table Title: List of tallest freestanding structures in the world
Table Content:
| Name | Country | Town | Height\nmetres / ft | Structural type | Held record | Notes |
| --- | --- | --- | --- | --- | --- | --- |
| Great Pyramid of Giza | Egypt | Giza | 146 / 480 | Mausoleum | 2570 BC–1311 | Due to erosion today it stands at the height of 138.8 metres (455 ft). |
| Lincoln Cathedral | England | Lincoln | 159.7 / 524 | Church | 1311–1549 | Spire collapsed in 1549; today, stands at a height of 83 metres (272 ft). |
| St. Mary's Church | Germany | Stralsund | 151 / 500 | Church | 1549–1647 | Spire destroyed by lightning in 1647; today stands at a height of 104 metres (341 ft). |
| Strasbourg Cathedral | Germany and/or France (today France) | Strasbourg | 142 / 470 | Church | 1647–1874 |  |
| St Nikolai | Germany | Hamburg | 147.3 / 483 | Church | 1874–1876 | Due to aerial bombing in World War II the nave was demolished; only the spire remains. |
| Notre-Dame Cathedral | France | Rouen | 151 / 500 | Church | 1876–1880 |  |
| Cologne Cathedral | Germany | Cologne | 157.4 / 516 | Church | 1880–1884 |  |
| Washington Monument | United States | Washington, D.C. | 169.3 / 555 | Monument | 1884–1889 |  |
| Eiffel Tower | France | Paris | 300.6 / 986 | Tower | 1889–1930 | Currently stands at a height of 324 metres (1,063 ft). |
| Chrysler Building | United States | New York City | 319 / 1,046 | Skyscraper | 1930–1931 |  |
| Empire State Building | United States | New York City | 448 / 1,472 | Skyscraper | 1931–1967 |  |
| Ostankino Tower | Russia | Moscow | 540 / 1,772 | Tower | 1967–1976 |  |
| CN Tower | Canada | Toronto | 553 / 1,815 | Tower | 1976–2007 |  |
| Burj Khalifa | United Arab Emirates | Dubai | 829.8 / 2,722 | Skyscraper | 2007–present | Topped-out on 17 January 2009 |


Question
how many of the world's tallest freestanding structures exist in germany?


Answer Format
The final answer should be concise and use the following format:
```json
{
    "answer": [
        "answer1",
        "answer2",
        ...
    ]
}
```
rule
["4"]